MATH 1030 Walden University Mathematics & Algebra Practice Quiz

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Nickia Rose | 09/08/21 5:38 PM
= Homework: Assignment – Week 2 Homework
Question 10, 6.2.105
Part 1 of 2
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The mathematical model
5 feet. Use the formula to find a healthy weight for a person whose height is 6’0″. (Hint: H = 12 because this person’s height is 12 inches over 5 feet.) How
many pounds is this healthy weight below the upper end of the range shown by the bar graph?
– 3H = 53 describes a weight, W, in pounds, that lies within the healthy weight range for a person whose height is H inches over
Healthy Weight Ranges for Men and Women, Ages 19 to 34
2401 Lower end of range
Upper end of range
2007
184
195
164
174
1607
155
146
148
140
132
125
118
Weight (pounds)
120/111
80-
40-
0
54
5 6
58
5 10
60
6
Height
According to the model, a healthy weight of a person 6’0″ tall is pounds.
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Nickia Rose & 09/08/21 5:38 PM
= Homework: Assignment – Week 2 Homework
Question 11, 6.2.109
Part 1 of 2
HW Score: 58.82%, 50 of 85 points
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The volume of blood in a person’s body is proportional to body weight. A person who weighs 160 pounds has approximately 5 quarts
number of quarts of blood in a person who weighs 140 pounds.
C.
Complete the proportion below, where the ratios are volume of blood to body weight.
(Do not simplify.)
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Nickia Rose | 09/08/21 5:38 PM
= Homework: Assignment – Week 2 Homework
Question 12, 6.3.1
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When four times a number is decreased by 9, the result is 23. What is the number?
…
The number is
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Nickia Rose : 09/08/21 5:38 PM
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Question 13, 6.3.19
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How an Average Life Expectancy of 80 Years Is Spent
The bar graph shows the average number of
years a group of people devoted to their
most time-consuming activities. According to
the graph, a person from this group will
devote 29 years to working and doing
chores. The number of years working will
exceed the number of years doing chores by
15. Over a lifetime, how many years will be
spent on each of these activities?
20-
15-
10-
5-
01
Sleep Work
TV Chores Food Games Mall
….
years will be spent on working and
years will be spent on doing chores.
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Nickia Rose : 09/08/21 5:38 PM
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Question 14, 6.3.23
Part 1 of 2
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$38,000
Despite booming new car sales with their cha-ching
sounds, the average age of vehicles on roads is not
going down. The bar graph shows the average price of $40,000
new cars in Country A and the average age of cars on
roads for two selected years. In 2014, the average price $36,000
of a new car was $37,600. For the period shown, new-
car prices increased by approximately $1250 per year.
$32,000
If this trend continues, how many years after 2014 will
the price of a new car average $43,850? In which year
$30,000
will this occur?
Average Price of New Cars and
Average Age of Carson Roads
2008 2014
111.6
113
37,600
11.3
11.09
…. 10.79
10.4
30,100
10.1
…. 10.1
$34,000
$28,000
9.8
Average Price Average Age of a
of a New Car Car on Roads
How many years after 2014 will the average price of new cars average $43,850?
years after 2014
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Nickia Rose & 09/08/21 5:39 PM
= Homework: Assignment – Week 2 Homework
Question 15, 6.3.33
Part 1 of 2
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You are choosing between two plans at a discount warehouse. Plan A offers an annual membership fee of $90 and you pay 70% of the
tommended list price. Plan B offers an annual membership fee of $50 and
you pay 90% of the manufacturer’s recommended list price. How many dollars of merchandise would you have to purchase in a year to pay the same amount under both plans? What will be the cost for each plan?
C.
You have to purchase of merchandise in a year to pay the same amount under both plans.
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Nickia Rose | 09/08/21 5:39 PM
= Homework: Assignment – Week 2 Homework
Question 22, 6.4.87
Part 1 of 2
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a. You must get
On two examinations, you have grades of 81 and 91. There is an optional final examination, which counts as one
grade. You decide to take the final in order to get a course grade of A, meaning a final average of at least 90.
a. What must you get on the final to earn an A in the course?
b. By taking the final, if you do poorly, you might risk the B that you have in the course based on the first two
exam grades. If your final average is less than 80, you will lose your B in the course. Describe the grades on the
final that will cause this to happen.
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Question 23, 6.4.89
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A car can be rented for 565 per week plus 50.05 per mile. How many miles can be driven if you have at most $140 to spend for weekly
.
You can drive at most
miles a week.
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S SOLUTION: college math – Al x
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Nickia Rose & 09/08/21 6:06 PM
= Homework: Assignment – Week 2 Homework
Question 10, 6.2.105
Part 2 of 2
HW Score: 61.18%, 52 of 85 points
Points: 2 of 4
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w
The mathematical model
5 feet. Use the formula to find a healthy weight for a person whose height is 6’0″. (Hint: H = 12 because this person’s height is 12 inches over 5 feet.) How
many pounds is this healthy weight below the upper end of the range shown by the bar graph?
– 3H = 53 describes a weight, W, in pounds, that lies within the healthy weight range for a person whose height is H inches over
Healthy Weight Ranges for Men and Women, Ages 19 to 34
2401 Lower end of range
Upper end of range
2007
184
195
164
174
1607
155
146
140
148
132
125
118
Weight (pounds)
120/111
80-
40-
0
54
5 6
58
5 10
60
6
Height
According to the model, a healthy weight of a person 6’0″ tall is 178 pounds.
This healthy weight is pounds below.
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S SOLUTION: college math – Al x
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Nickia Rose
09/08/21 6:15 PM
= Homework: Assignment – Week 2 Homework
Question 15, 6.3.33
Part 2 of 2
HW Score: 82.94%, 70.5 of 85 points
Points: 2.5 of 5
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You are choosing between two plans at a discount warehouse. Plan A offers an annual membership fee of $90 and you pay 70% of the manufacturer’s recommended list price. Plan B offers an annual membership fee of $50 and
you pay 90% of the manufacturer’s recommended list price. How many dollars of merchandise would you have to purchase in a year to pay the same amount under both plans? What will be the cost for each plan?
You have to purchase $ 200 of merchandise in a year to pay the same amount under both plans.
The cost for each plan will be $
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Nickia Rose & 09/08/21 6:23 PM
= Homework: Assignment – Week 2 Homework
Question 11, 6.2.109
Part 1 of 2
HW Score: 95.29%, 81 of 85 points
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The volume of blood in a person’s body is proportional to body weight. A person who weighs 160 pounds has approximately 5 quarts of blood. Estimate the number of quarts of blood in a person who weighs 70 pounds.
C.
Complete the proportion below, where the ratios are volume of blood to body weight.
(Do not simplify.)
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S SOLUTION: college math – Al x
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Nickia Rose & 09/08/21 6:27 PM
= Homework: Assignment – Week 2 Homework
Question 11, 6.2.109
Part 2 of 2
HW Score: 95.29%, 81 of 85 points
Points: 3 of 4
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The volume of blood in a person’s body is proportional to body weight. A person who weighs 160 pounds has approximately 5 quarts of blood. Estimate the number of quarts of blood in a person who weighs 70 pounds.
C.
Complete the proportion below, where the ratios are volume of blood to body weight.
х
5
70 160
(Do not simplify.)
There are approximately quarts of blood in a person who weighs 70 pounds.
(Round to two decimal places as needed.)
X
i
}
vo
..
(1,1)
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| 09/08/216:29 PM
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Question 17, 6.3.CP1
HW Score: 96.47%, 82 of 85 points
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Watch the video and then solve the problem given below.
Click here to watch the video.
Use the figure to find the difference in median starting salaries for graduates in the communications and computer science fields.
Click the icon to view the median starting salaries for graduates.
Х
Median Starting Salaries for U.S. College Graduates
Median Starting Salaries for U.S. College Graduates
$60
$50
$40
$30 –
$20!
$100
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